Volkswagen Golf Quiz
4- cylinder injection engine(1.4 1 direct inction. turbocharger)

Checking charge air system for leaks

In this manual: 4- cylinder injection engine(1.4 1 direct inction. turbocharger)
General body repairs, exterior — 230General body repairs, interior — 279General information, paint — 133Vechile- specific paint information — 27Heating, air conditioning — 156Auxiliary heater — 58Air conditioning system with refrigerant R134a — 1297- speed dual clutch gearbox 0CW — 544- cylinder injection engine(1.4 1 direct inction. turbocharger) — 182Fuel supply system - Petrol engines — 59Running gear, axles, steering — 221Brake system — 92Wheels and Tyres guide — 12Guide for using trailers — 11Wheels and Tyres Guide - General Information — 121Brake system (hybrid) — 73Electrical system — 326Communication — 65Electrical system, general information — 111
~1min read

Special tools and workshop equipment required

Charge air system tester -V.A.G 1687-

Procedure

 Checking charge air system for leaks
  • Release hose clips -1- and -2-, and remove air pipe.
Checking charge air system for leaks
  • Connect adapter -V.A.G 1687/15- with adapter -V.A.G 1687/11- to turbocharger.
  • Connect hose -1- of charge air system tester -V.A.G 1687- to adapter.
Checking charge air system for leaks

Prepare charge air system tester -V.A.G 1687- as follows:

  • Unscrew pressure control valve -2- completely, close valves -3- and -4-.

To turn the pressure regulating valve -2- the knob must be pulled upwards.

  • Connect charge air system tester -V.A.G 1687- to compressed air -1- via commercial adapter.
Note

If there is water in the sight glass, drain at water drain screw -6-.

  • Open valve -3-.

Risk of damage to engine

Risk of damage because pressure is set too high.

The pressure must not exceed 0.5 bar!

  • Adjust pressure to 0.5 bar with pressure control valve -2-.
  • Open valve -4- and wait until test circuit is full. If necessary, readjust pressure to 0.5 bar.
  • Check charge air system for leaks by listening, touching, with commercially available leak detector spray or using ultrasonic tester -V.A.G 1842-.
Note A small amount of air escapes through the valves and enters the engine. Therefore a holding pressure test is not possible.

How to use the ultrasonic tester -V.A.G 1842- → operating instructions

Before removing the adapter, release pressure in the test circuit by pulling off hose coupling.

Installation is carried out in the reverse order; note the following:

Note

Renew seal and O-rings.

Specified torques

→ Fig. „“Installing air ducts with screw-type clips”“
Checking charge air system for leaks

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